If you feel faint or dizzy, stop pushing the cardio aspect.You may be dehydrated, or if you didn’t eat anything before you began your workout, you may need to have a small piece of chicken or a bowl of oatmeal.If that doesn’t relieve the symptom, then check your blood pressure numbers and contact your physician to make sure there isn’t a medical explanation for the lightheaded feeling.

Also, remember that you can over train.Moderation in the number of consecutive days you utilize this training is important.This also rings true for pliametrics (explosion training).Your muscles need time to repair and rebuild themselves.